With an inside diameter of 510 mm , the containers provided plenty of space for spraying, so we recommended they install four ST-6-1.3X spray guns equipped with flat-fan pattern to rods to spray the coating liquid.
The system we proposed forms a layer of liquid on container interiors by rotating the containers while drawing the rod from their bottoms while spraying.
- (Spraying conditions)
- Atomizing air pressure: 0.15 MPa
- Liquid pressure: 0.3 MPa
As a result, the coating was able to prevent moisture from getting into the containers,
so the client was able to store their powder directly in the containers without using vinyl bags.
Not only did the container manufacturer win high praise from the client for cutting down on their workload, this became the first example in the paper container industry of a container that used an internal coating.
This made their product widely recognized as a high value-added product.